TXT query plus CNAME equals A query

[Geoff Hoff]

I should have mentioned, this is for version 1.3.07.08.

On Sun, Jul 27, 2008 at 9:21 PM, Geoff Hoff <gahoff at gmail.com> wrote:
> When using the instructions here
> https://www.dns-oarc.net/oarc/services/porttest to see how maradns
> rates for query port randomization, I found an unexpected result.  The
> instructions are to run the query "dig +short porttest.dns-oarc.net
> TXT".  That entry is a CNAME for
> z.y.x.w.v.u.t.s.r.q.p.o.n.m.l.k.j.i.h.g.f.e.d.c.b.a.pt.dns-oarc.net.
> Doing a packet capture, maradns does a TXT query for the first entry,
> but after following the CNAME, it does an A query.  Both PowerDNS
> recursor and unbound continue with TXT queries after the CNAME.  From
> the weblog, I saw this post
> http://maradns.blogspot.com/2008/06/deadwood-200-released.html that
> indicates that the CNAME handling is known to non-optimal.
>
> This isn't a significant problem, but thought I'd share in case anyone
> else reading the list encounters the same thing.
>